[MW:29598] WPS

Dear Colleague;

I have a question ,please i want to know how to select the filler metal to weld dissimilar metal ,because i have WPS , the information :  P1 to P10H ,Grade API 5L,PSL 2  , X65Q to Grade ASME A790 S31803 and  i found the electrode ER2209 for root and E2209-16 for fill is this selection acceptable or not i need advice  .

I review ASME IX but i didn't find any information about this.

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